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Composite ceramic preform and its preparation method

A technology of composite ceramics and prefabricated parts, applied in the field of ceramic processing, can solve the problems of easy expansion of joints, waste of energy, and high maintenance costs, and achieve the effects of reducing furnace door thickness, improving construction efficiency, and reducing maintenance costs.

Active Publication Date: 2021-09-24
河南蚂蚁新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, traditional coke oven doors and rising pipes are all made of small clay or cordierite refractory bricks. Because there are many joints, coke and carbon deposits are easy to accumulate in the joints during use. As the reaction is repeated, the joints are easily enlarged. With the expansion of the joints, the airtightness and thermal insulation performance of the furnace door decline rapidly, and smoke, dust, and coke seepage follow, causing environmental pollution and waste. energy
Moreover, the mechanical strength and thermal shock performance of traditional furnace door materials are poor, the service life is not long, and the later maintenance is frequent. higher maintenance costs
[0003] The traditional rising pipe is mostly built with small clay or cordierite bricks in the lower part, and cast iron pipes are mostly used in the upper bridge pipe, which has problems such as short life, poor airtightness and thermal insulation performance, easy coking and carbon deposition, etc., which is easy to cause gas leakage and pollute the environment , and there are potential safety hazards, difficult maintenance in the later period, and high maintenance costs
[0004] Traditional coal filling holes mostly use clinker bricks, which have poor heat insulation effect and serious energy waste. After a period of use, tar is easy to stick, resulting in poor airtightness, smoke and fire, etc., which deteriorates the working environment of the furnace top and causes environmental pollution

Method used

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  • Composite ceramic preform and its preparation method
  • Composite ceramic preform and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A composite ceramic prefabricated part, including a heat-resistant ceramic body and a high-performance microcrystalline ceramic glaze compounded on the surface. The heat-resistant ceramic body is made of the following raw materials in parts by weight: GL-88A high alumina bauxite clinker Ⅰ 8-21 19-29 parts of GL-88A high-alumina bauxite clinker II, with a particle size of 3-5mm, 18-28 parts of mullite waste bricks, with a particle size of 1-3mm, and 5-15 parts of cordierite , the particle size is 0-1mm, 10-20 parts of fused silica, the particle size is 0.088mm, 5-15 parts of silica powder, and 3-10 parts of CA-70 high alumina cement.

[0031] The high-performance microcrystalline ceramic glaze is made of the following raw materials in parts by weight: 10-30 parts of lithium petalite, 5-15 parts of lepidolite, 5-15 parts of potassium feldspar, 3-8 parts of soft kaolin, calcined kaolin 5-10 parts, wollastonite 1-10 parts, calcined talc 6-18 parts, quartz 7-20 parts, barium...

Embodiment 2

[0048] A composite ceramic prefabricated part, including a heat-resistant ceramic body and a high-performance microcrystalline ceramic glaze compounded on the surface, the heat-resistant ceramic body is made of the following raw materials in parts by weight: 15 parts of GL-88A high-alumina bauxite clinker I, The particle size is 5mm, 25 parts of GL-88A high alumina bauxite clinker II, the particle size is 3mm, 25 parts of mullite waste brick, the particle size is 2mm, 10 parts of cordierite, the particle size is 1mm, 10 parts of fused silica, the particle size is 0.088mm , 10 parts of silica powder, 5 parts of CA-70 high alumina cement.

[0049] The high-performance microcrystalline ceramic glaze is made of the following raw materials in parts by weight: 27 parts of lithium petalite, 10 parts of lepidolite, 5 parts of potassium feldspar, 5 parts of soft kaolin, 8 parts of calcined kaolin, and 4 parts of wollastonite , 12 parts of calcined talc, 15 parts of quartz, 4 parts of b...

Embodiment 3

[0062] A composite ceramic prefabricated part, including a heat-resistant ceramic body and a high-performance microcrystalline ceramic glaze compounded on the surface, the heat-resistant ceramic body is made of the following raw materials in parts by weight: 8 parts of GL-88A high alumina bauxite clinker I, The particle size is 6mm, 19 parts of GL-88A high alumina bauxite clinker II, the particle size is 4mm, 20 parts of mullite waste brick, the particle size is 3mm, 12 parts of cordierite, the particle size is 0.5mm, 15 parts of fused silica, the particle size is 0.088 mm, 8 parts of silica powder, 7 parts of CA-70 high alumina cement.

[0063] The high-performance microcrystalline ceramic glaze is made of the following raw materials in parts by weight: 20 parts of lithium petalite, 15 parts of lepidolite, 9 parts of potassium feldspar, 3 parts of soft kaolin, 5 parts of calcined kaolin, and 7 parts of wollastonite , 9 parts of calcined talc, 20 parts of quartz, 3 parts of ba...

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Abstract

A composite ceramic prefabricated part, including a heat-resistant ceramic body and a high-performance microcrystalline ceramic glaze compounded on the surface, the heat-resistant ceramic body is made of high alumina bauxite clinker I, high alumina bauxite clinker II, mullite Stone waste bricks, cordierite, fused quartz, silica micropowder, high alumina cement, high-performance microcrystalline ceramic glazes are made of lithium petalite, lepidolite, potassium feldspar, soft kaolin, calcined kaolin, wollastonite, It is made of burnt talc, quartz, barium carbonate, and zirconia. Compared with the prior art, the composite ceramic prefabricated part of the present invention is compounded with high-performance microcrystalline ceramic glaze on the surface, so it does not hang dirt during use, is easy to clean, and reduces maintenance costs in the later period. It can be greatly reduced, the thermal conductivity is lower, and it has better thermal insulation effect. Compared with traditional materials, the temperature of the facade of the used part can be reduced by 20~30°C.

Description

technical field [0001] The invention relates to the technical field of ceramic processing, in particular to a composite ceramic prefabricated part, in particular to a ceramic prefabricated part with low thermal conductivity, long life, wear resistance and self-cleaning performance. Background technique [0002] At present, traditional coke oven doors and rising pipes are all made of small clay or cordierite refractory bricks. Because there are many joints, coke and carbon deposits are easy to accumulate in the joints during use. As the reaction is repeated, the joints are easily enlarged. With the expansion of the joints, the airtightness and thermal insulation performance of the furnace door decline rapidly, and smoke, dust, and coke seepage follow, causing environmental pollution and waste. energy. Moreover, the mechanical strength and thermal shock performance of traditional furnace door materials are poor, the service life is not long, and the later maintenance is frequ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/622C03C8/00C04B41/86
CPCC03C8/00C04B35/10C04B35/62204C04B41/009C04B41/5022C04B41/86C04B2235/3418C04B2235/3481C04B41/4545
Inventor 王伟赵振江冯晓磊徐建民
Owner 河南蚂蚁新材料有限公司
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